Pharmaceutical Analysis

Radial chromatography is a form ofchromatography, a preparatory technique for separating chemical mixtures.The wick at the center of system drips solvent into the system which  provides the mobile phase and moves the sample radially to form the sample spots of different compounds as concentric rings.

Here only a single sample can be used.

Seperate into constituent parts

In chromatography, the retardation factor(R) is the fraction of an analyte in the mobile phase of a chromatographic system. In planar chromatography in particular, theretardation factor Rf is defined as the ratio of the distance traveled by the center of a spot to the distance traveled by the solvent front.

Retention time (RT) is a measure of the timetaken for a solute to pass through a chromatography column. It is calculated as the time from injection to detection. The RT for a compound is not fixed as many factors can influence it even if the same GC and column are used.